Telling whether a site is being served by who you think it is is fast becoming a crucial skill, to the point where I explain at least the basics to even the most technically illiterate people I know who use a computer. It's a real problem, in substantial need of a solution.
I don’t buy this learned helplessness. Schools need to evolve with the times.
We teach kids calculus in school, surely we can teach them to read a freakin URL.